Amavasi, also known as Amavasya or Amavas, is the no moon day in a month in a traditional Hindu lunar calendar. Amavasya March 2015 date is March 20. Amavasya Time is from 6:48 PM on March 19 to 3:06 PM on March 20, 2015. As per traditional North Indian calendar it is the Amavasya in Chaitra month. In other regions it is the Phalgun Amavasi.

The March 20 Amavasya marks the end of Vikram Samvant 2071 in North India. It also marks the end of Shaka Era 1936 in other regions.

Jayanama Samavatsara ends in calendars followed in Maharashtra, Gujarat, Andhra Pradesh, Telangana and Karnataka. The next day (March 21) is observed as Ugadi and Gudi Padwa.

Amavasi is the darkest day in a traditional Hindu month and is considered both auspicious and inauspicious by different Hindu communities.

There are many Hindus who undertake a fast on Amavasi. Some devotees only take a single meal on the day.